Synthesis of automatic gain controllers for conical scan tracking radar

Author

Guesalaga, A. ; Tepper, S.

Author_Institution

Dept. of Electr. Eng., Catholic Univ. of Chile, Santiago

Volume

36

Issue

1

fYear

2000

fDate

1/1/2000 12:00:00 AM

Firstpage

302

Lastpage

309

Abstract

The automatic gain control (AGC) of a conical scan tracking radar IF amplifier is designed using H_∞ synthesis. It is shown that this technique is particularly suited for this problem because of its loop shaping capabilities and because it can tackle particular frequencies effectively, providing a correct balance among closed-loop stability, fast response to echo changes, and rejection of frequencies other than the echo modulation. Two controllers are implemented and compared with a standard controller, showing significant improvement in system tracking

Keywords

Bode diagrams; FM radar; H^∞ control; automatic gain control; closed loop systems; control system synthesis; intermediate-frequency amplifiers; radar receivers; radar tracking; state-space methods; Bode plots; FM radar; H_∞ synthesis; IF amplifier; automatic gain controller synthesis; closed-loop stability; conical scan tracking radar; correct balance; echo changes; echo modulation; fast response; loop shaping capabilities; nonlinear model; radar receiver; range-gated signal; rejection of frequencies; state space solutions; weighting functions; Automatic control; Closed loop systems; Control systems; Feedback loop; Filters; Frequency; Gain control; Radar tracking; Stability; Target tracking;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems, IEEE Transactions on

Publisher

ieee

ISSN

0018-9251

Type

jour

DOI

10.1109/7.826334

Filename

826334